Gas-burner.



" f UNITED. STATES f'ATnNT Fries,

lADOLll BELER, OF PITTSBURGhPENNSYLVANIA, ASSIGNOR OF TWO-FIFTHS TO CHARLES H.PARSONOEJENIFER, ALABAMA, AND FRED HARTLEY,

GAS-,Blu RN E R.

SPECIFICATION forming part of Letters Patent No. 716,176, dated December 16, 1902.. Application filed September 10. 19t-)2. Serial No. 122,879. (No model.)

To a/ZZ whom t may concern:

aspeciiicaticn. i

This invention relates to gas-burners for heating, cooking, and other purposes; `and it Io has for its obj ect to provide a device of' thisclass which shall possess superior advantages n in point of simplicity, durability, and general efficiency and which shall be constructed e especially with a view of preventing what is known as back-lighting, which not infre- My present invention may be best described as an improvement of the device for which Letters Patent of the United States,

No. 706,633 were granted to myself on the 12th day of August, 1902, although it may be 3o found applicable to diiferently-constructed burners of the same class.

In the accompanying drawings, Figure lis a perspective view of a gas-burner constructed 1n accordance with my present invention,

` parts of the same having beenfbrokenA away to expose` the interior construction. Fig. 2 is a vertical sectional view of said burner,

Corresponding parts in the several iigures are indicated by similar characters of reference.

As in my previous patent 4above referred `to, I employ an inverted conical deflector 1, supporting-a flame-spreader 2 and surrounded Aby a casing 3, theV upper portion of which is iiaredoutwardly and upwardly to surround the deector 1, between the outer side of which and the inner side of the casing is left a narrow annular space 4, the width of which may be regulated by raising or lowering the e 5o `said casingwith relation to the deflector, or

f l vice versa. i Be it known that I, ADoLF BELER, a `citi-` `zen of the United States, residing atPitts-` burg, in the county of Allegheny and State 5 of Pennsylvania, have invented a newand useful Gas-Burner, of which the followingis This adjustment may be eiiected by any suitable means. The lower portion of the casing is cylindrical, as shown at 5, and it supports at its lower end an air-intake funnel, above which the cylindrical portion ofthe casingis provided with auxiliary airintake openings 7, the effective area of which may be varied by means of a hood 8, having a cylindrical portion 9, that slides upon the exthe casing,fwhere it is adjustable by means of set-screws l0, engaging slots 11 in the said cylindrical portion 9 or by other suitable means. The air-intake funnel 6, Which is of truncated conical shape,lhas at its Lipper edge a short cylindrical extension 12, which forms a mixing-chamber for the air admitted through the intake 6 and the gas which is admitted from a supply nozzle or tip 13, which may be disposed below or underneath the intake 6, and 7o which may, if desired, engage a diametrical cross-bar lltfof said airintake funnel, said cross-bar being centrally perforated to receive and to rest upon the gas-nozzle. The cylindrical portion 5 of the casing is provided 75 with an interiorly-disposed annularflange 15, which is flared upwardly and inwardly in a 'truncated conical shape and provided at its 'inner edge with a cylindrical upward extension 16.- Thisflange 15 16 intercepts the air 8o admittedfthrough the auxiliary air-intakes 7 and'causes it to comminglewith the mixture of air and gas issuing from the mixing-chamber`12,and projects the ultimate mixture against `the pointed lower end of the deliector 1, whence-it passes upwardly through the annular space 4t, issuing from which it is ignited `and the llame projected upon the iiamespreader into-the pocket 17, formed between the annular flange 15 and its upward extension 16 and the walls of the cylindrical portion 5 of the burner-casing. It will thus be seen that while perfect provision is made for the primary and auxiliary admission of air for the mixing of ythe same with the gas, and for the regulating of the admission of air through the auxiliary intakes, the danger of ignition at either of the air-intakes is quite avoided.'

It will be noted that the'diameter of the opening of the inwardly and upwardly ilaring flange composed of the members 15 and 16 is distinctly less than the diameter of the cylindrical upward extension 12 of the airintake funnel 6. The object of this is rtwofold-namely, first, to throw the air from the auxiliary intakes directly in the path of the mixture escaping from the primary mixingchamber, thus insuring a thorough commingling of the air and gas, and, secondly, to increase the area and capacity of the pocket 17, thus correspondingly increasing its efficiency and certainty of action in case of back draft.

Having thus fully described my invention, what I claim is- 1. In a burner of the class described, an inverted conical dedector, a casing surrounding the same and having a downwardly-extended cylindrical portion, an air-intake funnel at the lower end of said cylindrical portion of the casing, auxiliary air-inlets in the casing above the intake-funnel, and an upwardly flaring flange disposed within the cylindrical portion of the casing and terminating above the upper edge of the intakefunnel.

2. In a burner of the class described, a casing, a deflector supported within said casing, an air-intake funnel at the lower end of said casing, a gas-supply nozzle disposed concentrically in the intake-funnel, auxiliary airintakes in the casing above the funnel, and an interiorly-disposed upwardly-darin g flange terminatingabovetheintake-funnelandforming, between itself and the wall of the casing, an annular pocket.

3. In a burner of the class described, a casing, a deilector supported within said casing, an air-intake funnel at the lower end of said casing, a gas-supply nozzle disposed concentrically in the intake-funnel, auxiliary airintakes in the casing above the funnel, means for regulating the effective area of said auxiliary air-intakes, and an annular upwardlyextending flange disposed within the casing above t-he auxiliary air-inlets and terminating above the upper edge of the intake-funnel.

4.v In a burner of the class described, a casing, a deflector supported within said casing, an air-intake funnel at the lower end of said casing having an upwardly-extended cylindrical flange, auxiliary air-intakes in the casing above the funnel, means for regulating the effective area of said auxiliary air-intake, and an annular upwardly-extending flange disposed within the casing above the auxiliary air-inlets and having an upward cylindrical extension terminating at a point intermediately between the lower point of the deilector and the upper edge of the cylindrical extension of the intake-funnel.

5. In a burner of the class described, an inverted conical deilector, acasing surrounding the same and having a downwardly-extended cylindrical portion, an air-intake funnel at the lower end of said cylindrical portion of the casing,auxiliary air-inlets in the casing above the intake-funnel, and an upwardly-flaring flange disposed within the cylindrical portion of the casing, forming a passage of distinctlysmaller diameter than the passage in the intake-funnel and terminating above the upper edge of said intake-funnel.

6. In a burner of the class described, a casing, an air-intake funnel at the lower end thereof, auxiliary air-intakes above and separate from the funnel and an inwardly and upwardly extending flange interiorly upon the casing, said flange forming a restricted passage of less diameter than the' passage through the intake-funnel.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two Witnesses.

ADOLF BELER.

Witnesses:

W. J. DILLoN, J. H. J ocHUM, Jr. 

